Sound wave guide for a loudspeaker



FIG. 1 is a perspective view of a sound wave guide for a loudspeaker showing my new design;

FIG. 2 is a front view thereof; and,

FIG. 3 is a sectional view thereof, taken along line 3-3 of FIG. 2 . 

CLAIM The ornamental design for a sound wave guide for a loudspeaker, as shown and described. 